+91-93193 64476
FlagBACK
Flag General Physics> the relation between time t and distance ...
question mark

the relation between time t and distance x for a particle moving in a straight line is t=ax2+ bx where a and b are constants . The retardation is?

sagar Sharma , 10 Years ago
Grade 11
anser 2 Answers
anemous
redardation is 2a/(2ax+b)^3
Last Activity: 10 Years ago
noogler
retardation is othing but negative acceleration.
we know that v=dx/dt,al=dv/dt             v=velocity,al=acceleration,x=displacement
first differentiate given eq.w.r.t. t
1=2axdx/dt+dx/dt
1=2axv+bv …..................(1)               v=1/2ax+b
differentiate(1)  w.r.t. t
0=2av2+2axal+bal .....................(2)
substitute v=1/2ax+b in (2)
2a/(2ax+b)2+(2ax+b)al=0
(2ax+b)al= -2a/(2ax+b)2
          al=-2a/(2ax+b)3                                        -ve sign indicates decrease in acceleration
 
Last Activity: 10 Years ago
star
LIVE ONLINE CLASSES

Prepraring for the competition made easy just by live online class.

tv

Full Live Access

material

Study Material

removal

Live Doubts Solving

assignment

Daily Class Assignments


Other Related Questions on general physics

question mark

 In viewing through a magnifying glass, one usually positions one's eyes very close to the lens. Does angular magnification change if the eye is moved back?

general physics
1 Answer Available

Last Activity: 7 Months ago

question mark
moment of inertia of a equilateral triangle about an axis passing through centre and perppendicular to the plane
general physics
1 Answer Available

Last Activity: 3 Years ago

question mark
. Because of the rotation of the earth, a plumb bob may not hang exactly along the direction of
the earth’s gravitational pull (its weight) but deviates slightly from this direction. Calculate the
deviation (a) at 40 latitude, (b) at the poles, and (c) at the equator
general physics
1 Answer Available

Last Activity: 3 Years ago

question mark
The length of a massless rod is measured using vernier callipers having 10 vernier scale divisions and least count of 0.1 mm. Two masses 1.00 ± 0.01 kg and 4.00 ± 0.02 kg are attached to its ends. If reading of vernier scale is 5 divisions coinciding with 1.3 cm, what is the % error in locating centre of mass from lighter mass
general physics
2 Answers Available

Last Activity: 3 Years ago

question mark
A block is kept on x-y plane at a point (2m,3m). It is pushed with a force of magnitude 10 Ntowards point (5m,7m). The force can be represented as?
general physics
1 Answer Available

Last Activity: 3 Years ago